118881131 has 8 divisors (see below), whose sum is σ = 121209504. Its totient is φ = 116565120.

The previous prime is 118881109. The next prime is 118881143. The reversal of 118881131 is 131188811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118881131 - 2¹⁴ = 118864747 is a prime.

It is a super-2 number, since 2×118881131² = 28265446615678322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118881431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17666 + ... + 23448.

It is an arithmetic number, because the mean of its divisors is an integer number (15151188).

Almost surely, 2^118881131 is an apocalyptic number.

118881131 is a deficient number, since it is larger than the sum of its proper divisors (2328373).

118881131 is an equidigital number, since it uses as much as digits as its factorization.

118881131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6181.

The product of its digits is 1536, while the sum is 32.

The square root of 118881131 is about 10903.2624016851. The cubic root of 118881131 is about 491.7046432155.

The spelling of 118881131 in words is "one hundred eighteen million, eight hundred eighty-one thousand, one hundred thirty-one".